Machine for inserting fastenings.



WT/VESSEST P. R. ,GLASS. MACHINE FOR INSERTING FASTENINGS,

APPLICATION FILED MAR. 9, 1910.

4 Patented Mar. 23, 1-915.

11 SHEET8=BHEBT 1.

P. R. GLASS. MACHINE FOR INSERTING FASTENINGS.

APPLICATION TILED MAB.. 9, 1910 I Patented Mar. 23, 1915.

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o 6232 O== l/ (3.96 J55 J58 25 35 0 O0 J62 o E- g o 10 fli x \/\//77\/ESSZ 2 P. R. GLASS. 7 MACHINE FOR INSERTING P'ASTENINGS. v APPLICATION TILED mum, 1910. 1 1 32,926. Patented Mar. 23, 1915.

n SHEETS-$31551 4.

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P. R. GLASS. MACHINE FOR INSERTING FASTENINGS.

' APPLICATION FILED MAB..9,1910. 1,1 32,926. Patented Mar. 23, 1915.

11 SHEETS-SHEET 5.

' mlulnl Mmzsszi )4 34 214 P. R. GLASS.

MACHINE FOR INSERTING FASTBNINGS. APPLICATION FILED MAR. 9, 1910.

1,1 32,926. Patented Mar. 23, 1915.

11 SHEETfi-SHEET 6.

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P. R. GLASS.

MACHINE FOR INSERTING FASTENINGS.

m mm 0 W N Mm 2 k d 1 m 1 5- W M Mam APPLICATION FILED MAR. 9, 1910. 1,132,926.

Patented Mar. 23, 1915.

11 SHEETS-SHEET 8- APPLIOATION FILED MAR.9, 1910.

MIA 5555 P. R. GLASS. MACHINE FOR INSERTING FASTBNINGS.

APPLICATION FILED MAR. 9, 1910.

Patented Mar. 23, 1915.

11 SHEETS-SHEET 9.

4 50- F1.13. l I//7/V[55[5. 6 5 7,4 774% P. R. GLASS. MACHINE FOR INSERTING FASTBNINGS.

APPLICATION FILED MAILQ, 1910. 1 132,926. Patented Mar. 23, 1915. 11 SHBETSSHEET 10.

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P. R. GLASS. MACHINE FDR INSERTING FASTENINGS.

' APPLICATION FILED MAR. 9, 1910. 1,1 32,926. Patented Mar. 23, 19-15.

11 sums-sum 11.

PEBLEY It. GLASS, or BROOKLINE, massacn'usn rrs',

.AssIGNon 'ro UNITED snoii MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOB INSERTING FASTENING-S.

Specification of Letters Patent.

Patented Mar. 2a, 1915.

Application filed March 9, 1910. Serial No. 548,139.

lt. GLAss a residing at scription, in connection with the accomi panying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for inserting fastenings and is herein shown as embodied in a fastening insertingmachine which inserts at a single operation all of the fastenings to be inserted in a single piece of work. a

in the manufacture of boots and shoes, in which art the invention is especially useful, machines of the general type above referred to have been employed for the most part for attaching heels, such work presenting comparatively uniform conditions and being of such a nature that it could scarcely be per formed satisfactorily by a machine which operated to insert the fastenings successively. The other fastening inserting operations upon boots and shoes have been performed almost exclusively, up to the present time, by machines ,which'insert the fastenings successively, such machines being adapted to meet better the varying conditions of the work and to operate upon a greater number of shoes in a given time than the multiple fastening inserting machines or gang nailers hithertoknown. Besides the heel attaching operation, however, there is performed in the manufacture of the ordinary types of boots and shoes another fastening inserting operation which presents substantially the same conditions so far as uniformity of numbers and locations of the nails is concerned as the heel attaching operation. This operation is the attachment of theheel-seat. For this operation there would be many advantages in employing-a machine which would insert at one time all of the fastenings required, provided the machine could perform as much work as machines for successively inserting fastenings for. this purpose;

An object of the present invention, therefore, is to provide an improved machine of the lk and of the machine; Fig.

into delivering position, showing k' thecam throughwhich the rack slide is that will greatly exceed that performed by machines of other types, and which shall produce work of a quality superior to that produced by machines of other types.

Other objects of the invention are to pro: vide a machine of this type which will operate upon a wide range of sizes of boots or shoes, and which will preferably not only attach the heel-seat but also perform other operations thereon, to provide convenient and easily operated means for adjusting the machine to cause it to operate upon'difi'er'ent ranges of sizes,by which a quick adjustment from one size range to another may be effected, and to provide a machine of this type in which the proper sequence of operations,

Still other objects and features of the invention will be apparent from a consideration of the following description and claims in connection with theaccompan'ying drawings, in which,

Figure 1 is a front elevation of a-pr'eferred embodiment of the invention; Fig. 2 is an elevation of that is to the left of an operator standing in front of the machine; Fig. 3 is a side elevation of the upper part of the machine viewed from the side opposite to that shown in Fig; 2; Fig. 4: is a rear elevation of the upper part 5 is a detail perspective with parts in section, and parts broken away, showing the nail driving mechanism an the heel-seat trimming mechanism; Fig. 6 is an exploded'perspective' showing 'the awls and their operating mechanism; Fig. 7 islocks for preventing actuation of the ma chine until the parts are in their proper operative relations; Fig. 8 is a perspective view of the awl driving head or casing an the driver guide slide with associated parts;

Fig. 9 is a perspectiveview of the. nail loader and the mechanism for returning it to nail receiving position; Fig. v10 is a perspective detail of'the nail loader and the mechanism for moving it-into nail delivering position; Fig. ll'is a perspective detail 0 the mechanism for moving the nail loader especially side of the machine which a part of I operated and the locking means in the operative connections between the cam and said slide; Fig. 12 is a perspective detail of the means for controlling the order of operation of the two sides of the machine; Fig. 13 is a perspective detail of a starting clutch; Fig. 14 is a perspective viewof one of the loose driving pulleys; Fig. 15 is a perspective detail, partly in section, of the means for supplying nails to the nail loader; Fig.

6 is a View of the work support operating mechanism.

The frame of, the machine comprises a standard 10 and a head 12, the principal operative parts of the machine being mounted in the head.

The machine is intended especially for nailing heel-seats, that is, for attaching the heel-seat end of the outsole to the insole and upper, and in order that the machine may operate effectively upon shoes of a Wide range of sizes provislon is made for quick and easy adjustment of various parts whereby the machine may be adapted for handling different successive ranges of sizes, the illustrated machine having capacity for dealing with sizes from ,5 to 12 in three successive ranges of five sizes each.

The nails which attach the heel-seat are preferabl driven simultaneously and there are there ore provided in the illustrated machine three gangs of nail drivers, each gang being intended for use with five different sizes of shoes. These gangs of drivers 14, 16 and 18 comprise, as here shown, 13 drivers each, and are carried respectively by three driver plates or blocks 20, 22 and 24 which have formed in their upper faces alined dove-tailed grooves 26 arranged to receive in succession the dove-tailed lower end of the driver operating plunger 28. The plunger 28 is provided with a rack 30, preferably formed as a separate piece inserted in a deep groove in the plunger 28 in order that it may come as near as possible into a line with the center of the gang of drivers. v

The rack 30 meshes with a segment gear 32 loose upon a shaft 34 fixed in the machine frame. Extending rearwardly from the hub of the gear 32 is an arm 36 pivotally connected at its rear end to a link 38, having an eccentric collar 40 surrounding an eccentric 42 upon the driving shaft 44.

e driver operating plunger 28 reciprocates in' a vertically movable awl operating head or casing 46, the upper part of the plunger being shaped to fit the interior of the casing 46 and the lower end being somewhat smaller in one of its transverse dimensions, so that it may enter one of the guides in a driver guide slide 48 arranged to slide through the casing 46 to bring its guides 50, 52 and 54'and driver blocks 20, 22 and 24 successively into operative relation to the plunger 28. The slide 48 moves in stationary ways formed in brackets 56 and 58 upon opposite sides of the casing 46. Springpressed plungers 59 carried by the driver blocks enter sockets in the guides and hold the blocks yieldingly in their elevated positions with'the grooves 26 in alinement.

The awls, of which there are three gangs, 60, 62 and 64, corresponding in sizes to the three gangs of drivers tailed plates 66, 68 and 70 respectively, which slide in arc-shaped ways 71 formed in a casing 72 carried by the machine frame. The ways in the casing 72 are interrupted substantially intermediate their length to receive an awl-carrying slide 74 which travels in transverse guideways 76 arranged above the arc-shaped ways 71, the slide 74 having formed in that portion which extends into the path of travel of the plates 66, 68, 70 a continuation of the ways 71 and being so dimensioned that it can sustain an awl-carrying plate and transfer the plate from its position in the ways71 into position beneath the awl operating head or casing 46.-

Automatic means is provided formoving the slide 74 to cause it to bring the selected awl carrying plate with its awls into operative position beneath the head 46. The illustrated means comprises a pusher bar 78 having formed in its front end a vertically extended dove-tailed guideway 80 which receives a dove-tail upon the rear end of the slide 74 toprovide for vertical movement of the slide 74 and the awls with respect to the pusher bar 78 during the awl-driving movement of the head 46. At its rear end the pusher bar 78 is connected by a link 82 to the upper end of the lever 84 fulcrumed in the machine frame, said lever 84 being connected by a link 86 to a second lever 88 loose upon a stationary shaft 90, the lever 88 being oscillated, and through its connections with the lever 84 imparting reciprocating movement to the pusher bar 78, by connections with a cam disk 92 comprising a cam roll attached to the lever at 94 and entering a cam groove 96 in the cam disk. The cam disk 92 is carried on the driving shaft 98 which is alined with, but separate from, the driving shaft 44 hereinabove referred to. v

The nails to be driven are delivered to suitable openings in a nail block 100 through which they pass into contact with the surface of the work and into which the drivers enter to drive them into the work. The nail block 100 is provided with three sets of nail receiving openings, 102, 104, 106, correspondin in arrangement with the arrangement 0 the respective drivers and awls which are to enter the said openings. In order that the openings suited to the particulai gang of drivers or awls which is to 139 operate may be brought into osition beneath the plunger 28, the nail lock 100 is constructed and arranged to slide in ways in the machine frame to bring the different sets of openings successively into position beneath the said plunger. To this end the block 100 is provided with lateral ribs 108 which enter grooves formed in the machine frame, said block being curved along its greatest dimension so that it may slide in arc-shaped ways. The shoe to be operated upon will be pressed up against. the under side of the block 100 and on its under side beneath each set of nail receiving openings the block will be preferably shaped so that it will conform approximately to the shape of the heel-seat end of the shoe pressed against it.

Preferably a single means W111 be provided for moving the nail block, the awls and the drivers into their proper operative relations to each other. The illustrated means comprises a lever 110 attached to a vertical rock-shaft 112. ries a segment rack 114 which meshes with a straight rack 116 upon the back side of the driver guide slide 48 Turning of the lever with the rock-shaft 112 will therefore cause the slide 48 to move across the front of the machine and to bring the driver blocks 20, 22 and 24 successively into operative relation to the plunger 28.

Carried in downwardly projecting lugs 118, 120 upon the lever 110 are pusher-s 122 and 124 for the awl carrying plates, the pusher 122 engaging the awl plate '66 and the pusher 124 engaging the awl plate 70. The middle plate 68 is moved by engagement with one or the other of the plates 66 and 70. Rigidly attached to the rock-shaf. 112 below the lever 110 and extending beneath the casing 72 in which the ways 71. for the awl plates are formed is an arm 126 which is connected to the nail block 100.

The ways in which the nail block 100 travels and the ways 71 in which the awl plates travel are both concentric with the rockshaft 112. It will therefore be seen that turning of the rock-shaft 112 as the lever 110 is moved to effect the movement of the slide 48 causes the simultaneous movement of the awl plates 66, 68 and 7 O and the nail block 100 and therefore brings the proper set of openings in the nail block into position beneath the gang of drivers intended to enter those openings, and brings that one of the plates 66, 68 and which carries the appropriate set of awls into such position in the slide 74 that on the'next forwardmovemcnt of the pusher bar 78 the awls will he brought into operative position beneath al s head or casing 46.

The lever 1'16 is lo ked at its different positions of adjustment by means of a plunger 128 upon one end of a latch member 130 The lever 110 car- I nail delivering pivoted upon the handle of the said lever, the plunger being maintained yieldingly in its lowermost-position by a spring 132 between the handle part of the latch member and the handle part of the lever. The plunger 128 is arranged to enter openings 134 in an arc-shaped plate 135 extending along the path of movement of the lever 110, there being one opening for each of the gangs of awls and drivers so located that the lever 110 will be locked when the awls, drivers and nail block are in their proper positions of adjustment.

The movement of'the head or casing 46 to force the awls into the work is effected by operative connections with a cam disk 136 upon the driving shaft 98 comprising a forked arm 138 of a lever fulcrumed upon a shaft 140 mounted eccentrically in the machine frame whereby it may be turned by pins entering openings 142 in one end of the shaft to adjust the fulcrum about which the lever turns and thereby vary the limits of movement of the head 46. The forked arm 138 receives between its members a block 144 pivoted between ears 146 extending rearwardly-from the casing or head '46, these ears being formed upon the lower pair of guiding extensions 148 of the casing 46 which slide over vertical guide rods 150, The lever arm 138 forms one arm of a three-armed lever, another arm of which 152 is pivotally connected to a roll-carrying link 154 forked at its rear end to embrace the shaft 98 and carrying between its ends at 156 a cam roll entering a cam groove 158 in the cam disk 136. The third arm 160 of the three-armed lever serves to actuate mechanism hereinafter to be described for trimming the heel-seat.

The nails are delivered to the openings in the nail block by a loader 162 carried in a squared opening in the outer end of the arm 164 of a lever fulcrumed upon the rockshaft 112, through which lever the nail loader is moved between nail receiving and positions. The nails are retained in the loader 162 until the loader comes into delivering position by a retaining plate 166 having a. rear-wardly extending arm 168 pivoted at 170 upon the lever arn1164, the retaining plate 166 being kept normally in its retaining position by a spring 17 2 connected at one end to the arm 168 and at its other end to the lever arm Beyond the pivot 170 the arm 168 is shaped to form a tripping member 17-1 arranged to engage a stop 176 upon the machine frame and move the retaining plate 166 so that openings in said plate are brought beneath the corresponding openings in the nail loader 162, thereby permit ting the nails carried by the nail loader to drop through into the nail receiving open- 'ings in. the nail block 1'00. It will he under In Fig. 9 is shown the mechanism foi moving the nail loader 162 from nail delivering position into nail receiving position. This mechanism comprises a rack sllde 178 pivotally connected. at 180 to the arm' 164 of the nail loader lever, said rack engaging a pinion 182 loosely mounted upon the vertical shaft. 184 to which it is arranged to be clutched by mechanism hereinafter vto be described.

The shaft 184 is driven by a worm and gear connection with a horizontal shaft 186 itself driven by a bevel ear connection with a second horizontal sha t 188 upon which is mounted. a driving pulley 190 connected by a belt 192 with a suitable source of power. Upon its upper end the pinion 182 is provided with a series of pins 194 with any one of which a pin 196 carried upon a clutch sleeve 198 is adapted to be moved into engagement. The clutch sleeve 198 is keyed to the shaft 184 to cause it to turn therewith and is normally kept in its uppermost position on the shaft by a spring socketed in the pinion 182 and bearmg against the I under side of the sleeve 198. It will be understood that the sleeve 198 may be moved longitudinally of the shaft 184. The sleeve 198 is provided with a peripheral groove 200 in which travel rollers upon the fork members of a forked arm 202 of a three-armed lever the fulcrum of which is constituted by a shaft 204. y

The arm 202 is extended upon the other side of the shaft 204 and in this extension or second arm 206 is carried a springpressed plunger 208 which bears against the upper side of a second lever 210 also fulcrumed 'upon the shaft 204 and having a Y curved upper end arranged to be engaged by a tappet cam 212 upon the driving shaft 44. The third arm 214 ofthe three-armed lever carries a set screw 216 arranged to bear upon the under side of the arm 210. In this third arm also is carried a catch 218 arranged to engage the upper side of a catch member 220 upon a block 222 carried upon the rear end of a spring-actuated plunger 224 arranged to slide in hearings in the machine frame and lock the clutch sleeve 198- A pin 226 upon the in operative position. block 222 lies in the path of the rear end of the rack slide 178 in such position that it will be engaged by the slide as the nail loader 162 comes into its nail receiving position and thus leave the lever through which the clutch sleeve 198 is moved into clutching relation to the pinion 182 free to nto'r nail delivering po- 7 a astop 227 is pivoted groove.

return the cllitch sleeve to its position.

To prevent the movement of the clutch sleeve 198 into operative position while the nail loader 162 is in nail receiving osition, u on the for ed arm 202 and. is yieldingl held in engagement with a portion of the hracket228 and' m vertical alinement with its pivot by a sprin 230. When .the nail loader 162 is move from nail receiving into nail delivering position a pin 232 upon the rack slide 178 engages the stop 227 and'turns' it about its pivot out of locking relationto the bracket 228 and .thus permitsthe forked arm 202 to move the clutch sleeve 198 into operative position when the tappet cam 212 enges the upper end of the lever 210. If the ttafippet ever cam 212 engages the upper end of the inoperative Y 210 while the stop 227 IS 1n locking osition the spring-pressed plunger 208 w l 'eld into its socket in the lever arm 206 an the movement of the lever 210 will have no effect upon the clutch sleeve 198. The spring 234 serves to hold the upper end of en l v 210 in operative relation to the tapp t cam 212.

The nail loader 162 is move hem hhii' receiving into nail delivering position by mechanism now to be described which is in operative when the mechanism hereinabove described for movmg the loader from nail delivering tonaxl receiving position is operative. Preferably formed integral with the lever arm 164 is a segment rack 236 which engages a straight rack 238 upon a rack slide 240 guided in the machine frame. Sliding within a longitudinal bore in the rack slide 240 is a rod 242 arranged to be locked to the slide 240 to transmit thereto the motion of acam operated lever 244 upon the stationary shaft 90.

The means for locking the slide 240 and the rod 242 together comprises a springpressed plunger 246 shaped at its lower end to enter a socket 248 in the rod 242 when the socket comes into operative position heneath the plunger. The lever arm 244'r'ecei es its motion from a'cam groove 250 in the cam disk92 upon roll 254 upon the arm 244 traveling in said At its lower end the arm 244 is connected by a link 256 with the rear end of the rod 242.

When the nail loader 162 has beeniinoved into fastening delivering position by the mechanism just described, this mechanism operative comprises a lifting arm 258 cara short rock-shaft 2330 havingheap ried by theshaft 98, a cam ire ' lever arm 164 as the nail ings in :the machine frame, said arm being arranged to engage under the head 262 of the spring-pressed plunger 246 as the slide 240 comes into its rearmost position. The lifting arm is operated to lift the plunger out of-the socket 248 in the rod 242 through the operation of a roll 264, carried by the eccentric 42, upon a cam arm 266 upon the end of the rock-shaft 260 remote from the arm 258.

A spring-pressed plunger arranged in a socket in the machine frame adjacent to the lifting arm 258 is engaged by the head 262 of the plunger 246 as the slide 240 comes into its rearmost position, and as-the plunger 246 is lifted by the lifting arm 258 the small plunger 267 springs out beneath the head 262 andholds the plunger 246 out of the socket 248-until the slide 240 is moved to carry the plunger 246 out of alinement with said socket.

The means for supplying-nails'tqthe na l loader when it is in fastening receiving pos tion comprises a plurality of flexible nall tubes 268, one for each nail opening in the nail loader, these :tubes guiding the nails from a corresponding plurality of raceways 27 0 into openings in a plate 272 arranged above the corresponding openings in the nail loader when in nail receiving position. Coiiperating with each of the raceways is a separator 274 yieldingly connected to a common separator bar 276 through which all of the separators are operated simultaneously to deliver nails to the tubes 268. Means is provided through which the bar 276 is operated as the nail loader comes into nail receiving position beneath the plate 272. This means comprises a lever 278 pivotedat 280 upon the machine frame and having an end arranged to be engaged and lifted by the loader comes into nail receiving position. Pivotally connected to the lever 278 intermediate its ends is a rod 282 adjustably connected at its upper end-to one arm of an angle lever 284, the other arm of which has a pin-and-slot connection with the slide 276.

The raceways are supplied with nails by segmental lifting plates 286, one for each raceway, which travel in guides in a nail pot or holder 288, the plates 286 passing through openings in the bottom 290 of the nail pot and being carried upon arms 292 loosely mounted upon the rock-shaft 294. Rigidly attached to the rock-shaft 294 is a crank arm 296 to which is connected a rod 298.

The rod 298 receives at its lower end a wrist pin 300 which is adjustable in a dovetailed groove 302 in a crank wheel 304 upona cross-shaft 306. The shaft 306 is driven bv a worm and gear connection with the shaft 188, the gear wheel being shown at 308' and-the worm at 310. Rotation of the shaft 306effects,.-through the rod 298, an oscillat1on of the lifting plates 286 with the shaft 294. The eonnectlons between the shaft 294 and the lifting plates 286 comprise a pawl carrying arm 312- rigidly attached .to the shaft 294 and having pivoted at 314 a I pawl 316 which is pressed by a spring3l8,

located between a downward projection of the arm 312 and the back side of the pawl, toward a catch 320 upon the arm 292. The pawl and catch are so shaped that if the liftmg plate in its upward movement meets an obstacle, such as a misplaced nail, the pawl Wlll slip over the catch and permit-the plate to drop back to its lowermost position. This position is preferably determined by an ad ustable stop comprising a bolt 322 confined by nuts in an ofiest portion 324 of an areshaped supporting bar 326 attached to the bottom 290 of the nail pot and extending along the path of movement of the lifting plate 286, there being one of these stop supporting bars for each lifting plate. The shaft 188 is preferably constantly rotated and the lifting plates 286 are therefore constantly oscillated with the shaft 294, between nail receiving positions in the bottom of the nail pot and nail delivering positions in alinement with the raceways, thus keepmg the racewa'ys 270 supplied with nails.

As hereinabove stated, mechanism is preferably provided for trimming the heel-seat of the boot or shoe to be operated upon while it is in positionto receive the nails. The under side of the nail block 100 beneath each of the sets of nail receiving openings 102, 104 and 106 is shaped to fit the usually curved heel-seat end of the shoe. The heelseat is therefore laid upon the shoe in advance of the nailing operation, being pressed up against the under side of the nail block 100 work support operating mechanism hereinafter to be described. While the shoe the knife in its upward movement will trim close in to the upper and will bevelthe rear end of the heel-seat to substantially its final form. The knife 330 has laterally extendingpins 338 which enter slots in the carrier 332, these slots permitting the forward and backward adjustment of the knife in its carrier. This adjustment is efiected, in the illustrated construction, by means of a lever 340 fulcrumed at one end upon the carrier 332 and pivotally connected at its other end to a block 342 which may be ad usted forwardly and backwardly upon the carrier 332 by an adjusting screw 344 threaded into a 111 346 upon the carrier.

%he'rear end of the knife bears aga nst the lever. 340 and is also supported for movement with the lever 340 as the carrler 332 moves u and down. To adjust the knife to the ifi'erent sizes of shoes, mechanism is preferably provided which 0 crates in timed relation to the mechanism or adjusting the drivers, awls and the nail block whereby, when the nailing mechanism is adjusted to operate upon a certaln range of sizes of shoes, the trimming mechanlsm W111 be adjusted at the same time to operate uponthe same range of sizes. This ad ustment is effected by moving the forward ends of the knife 330 toward or away from each other. These ends are curved back upon themselves and embrace within the curve thus formed rollers 348 and 350 upon slide blocks 352, 354, the block 352 being adjustable in the end of a lever 356 fulcrumed at 358 upon the under side of one of the guides for the nail block 100, and the block 354 being arranged to slide in the forward end of a lever 360 fulcrumed upon a stud 362 carried upon the depending bracket 364 attached to the front of the nail block guide. Adjustment of the blocks 352 and 354 upon the levers 356 and 360 serves to vary the distance apart of the forward ends of the knife 330 independently of the automatic adjustment of these ends for different ranges of sizes. This adjustment of the blocks 352 and 354 may be. efi'ected in any suitable manner, as for example, by screws 366 and 368 carried in cap plates 370 and 372, respectively.

The levers 356 and 360 are both connected to the nail block moving arm 126 in such manner that when the nail block is adjusted to bring the appropriate set of nail receiving openings into position over the shoe to be operated upon the forward ends of the knife 330 are moved simultaneously toward or away from each other toadapt the knife in size and shape to the same shoe. The connection between the lever 356 and the arm 126 comprises a link 374 pivoted at its respective ends to the arm and lever. The connection between the arm 126 and the lever 360 comprises a lug 376 upon the arm 126 which travels in a cam slot 378 in one arm of the lever 360.

As hereinabove suggested the movement of the knife 330 takes multaneously with the work penetrating movement of the awls. This simultaneous movement ofthese two mechanisms is effect trimming place sied in the present construction by connecting the mechanism for moving the knife to one arm 160 of the three-armed lever through which the head or casing 46 is moved downward to force the awls into the work. The mechanism for moving the knife 330 into work trimming position comprises toggle links 380 and 382, the link 380 being pivotally connected to the knife carrier 332 and the link 382 being pivoted at 384 upon the machine frame. At its knee joint the toggle comprised by the links 380, 382 is connected by a link 386 to one arm 388 of an angle lever fulcrumed at 390 in the machine frame, the other arm 392 of said angle lever being connected by a link 394 to the arm 160 of the three-armed lever hereinabove referred to. It will thus be seen that as the three-armed lever is rocked in the direction to move the head 46 downward, it will straighten the toggle which moves the knife 330- in the direction to perform the trimming operation. In order that the cutting edge of the knife 330 may not become dulled too quickly, the under side of the knife block and the adjoining surfaces against which it may cut are preferably formed of some material which is softer than the material of which the knife is made, for example, brass, lead or vulcanized fiber.

Any suitable work support may be employed with this machine, that herein illus trated being a jack of the type disclosed in United States Letters Patent 919,424, to W. H. Cuff, granted April 27, 1909, for improvements in jacks for nailing and slugging machines. The means for operating the work support comprises means for raising the work support to clamp the Work in operative position and means for lowering the work support to permit the work to be removed, one of th erated from one of the driving shafts and the other being operated from another driving shaft. The jack 396 herein illustrated is supported upon the jack post 398 which is formed in two parts, the reduced part 400 being surrounded .by a spring 402 which bears at one end against the enlarged part of the jack post and at its other or lower end against a sleeve 404 surrounding the reduced end 400 of the jack post. At its lower end the sleeve 404 is provided with ears 406 between which is pivoted a roll 408 which bears upon a spiral cam 410 by which the jack post and jack are raised into operative position. The cam 410 is rigidly attached to the rock-shaft 412 upon which is also carried a gear wheel 414 with which meshes a segment gear 416 attached to a rock-shaft 418. The spiral cam 410 is turned in the direction to lift the jack post and jack by connections to a cam 420 upon the shaft 98 comprising an arm 422 attached to the rockshaft 418 to which is pivotally connected at e sald means being opits lower end its lower end a rod 424:, said rod being'connected at its upper end to one arm of a lever 426 fulcrumed at 428 in the machine frame and carrying in the forked end of its other arm a' cam roll 4.30 which bears against the cam 420.

As the spiral cam 4:10 is turned in its jack raising direction the jack is raised yieldingly into work clamping posit-ion, the movement of the jack being substantially equal to the movement of the sleeve until the upper face of the work comes into contact withthe under face of the nail block. When this happens the spring l02 will be compressed. As the movement of the spiral cam $10 is the same for each operation, the spring 402 will be compressed an amount which is dependent upon the thickness of the work.

In-ordcr that the nails may be driven against an unyielding supportmeans is provided for introducing a stop in the path of the jack post so that the jack post will be kept from downward movement during the nailing operation. In the illustrated embodiment of this the reduced part 00 of the jack post is provided with a slot in which travels a wedge shaped slide 432, the sleeve lOl being provided with a corresponding slot to receive and'guide the said slide. The lower edge of the slide 432 rests upon the bottom of the slot in the sleeve lOl. Attached to the reduced part 4.00 of the jack post is a collar 43L having cars 4-36 projecting through a cutaway side of the sleeve 40 and between these ears is fulcruined a bell crank i238, having a depending arm pivotally connected at to the slide -t32. The other arm of the bell crank is pivotally connected to a dog llO attached to the sleeve -i0l.

The operation of the con truction just described is as follows: After the jack has been lifted far enough to bring the upper face of the work into contact with the lower face of the nail block 100. the continued upward movement of the sleeve .0 l. as the spiral cam 410 continues to turn. serves to compress the spring 402 and thereby yieldiugly to press the work against the under side of the nail block. As the sleeve 40L moves up, howevcr, the dog HO bearing against the short arm of the bell crank 43S turns the bell crank about its pivot and thereby moves the slide 432 inward, so that a lower portion of its inclined upper edge rests beneath the inclined upper end of the slot in the reduced part '400 of the jack post. This movement of the slide 13) through the slot in the re-.

duced part of the jack post is a compensating movement. so proportioned that the slide 4-3-2 will always form a stop engaging with its lower edge the lower end of the slot in the sleeve -i0l-, and engaging with its upper edge the upper end of the slot in the reduced part of the jack post. There is thus always direction .of

feature of the invention,

support for the jack in the the nail driving movement. The jack is lowered by mechanism which opcrates to turn the spiral cam 410 in the direction opposite to that in which it is turned to elevate the jack. This mechanism comprises a second arm H2 connected to the rock-shaft 4:18 and connected to a cam l-i-L upon the driving shaft ll by connections comprising a rod lit pivotally connected at one end to the arm and pivotally connected at its other end to one arm of a lever 4-l8, the other arm ofwhich is forked at its endand carries between the fork members a canr roll 50 which bears against the cam 4&4. y

In Fig. 16 of the drawings the jack is shown in its slower-most position. In this figure it will be noted that the cams -l-20and 4-44 "are so angularly positioned upon their respective shafts that the high portion of the cam 444 will move out of contact with the cam roll 450 before the high portion of the cam +120begins to This permits the lever i 38 to be turned about the common fulcrum #28 of the two levers 426 and 4.48 as the rockshaft =l18 is turned bv the action of the cam L20 upon the lever I +126. In a similar way the high portion of the cam E0 is moved out of engagement with the roll 4-30 before the high portion of the cam Ml begins to operate upon the, roll 450.

As hereinabove indicated, the machine is provided with two normally inoperative main driving shafts ll and .98 and anormally operative shaft 188. Each of the driving shafts M and 98 is provided with a loose driving pulley to which the shaft may be clutched when it is, desired to render it operative to drive the various mechanisms connected to it. In the operation of the machine the pulley M2 is first clutched to thy.- shaft 98 when the trcadle lB'lqWlllCll controls the starting of the machine is depressed. the mechanisms operated by .or from the shaft 98 being arranged to perform their functions before the mechanisms operated from the shaft 44. Y

The clutch and clutch controlling means are shown in detail in Figs. 12,13 and ll. Keyed upon the shaft 98 upon which the pulley 159. is loosely mounted is a disk 456 having a peripheral groove 458 inwhich the wedge-shaped end 100 of a bellaerank 402 is guided as it performsits clutch releasing function, this wedge-shaped end at illlSq'fiHlQ- entering a notch 4% in a spring-pressed plunger 4G6 guided in a transve in the disk l50as it is moved 'into o o engagement with one of the pins-'10 .,on the pulley lil. \Vhcn drawn out of clutching engagement with one ofthe:pinsAGSthe plunger H36 engages a pin 4.70 upon the ma.- chine frame, springing back a latch 472 justan unyielding iii) ' 40 disk 456.

machine frame and carrying at its other 520 will normally be maintained in its up- 115 V 'bya tappet cam 502 upon the cam disk 92. one end to an arm-528 below the pivot 522 its of the lever 496 which carries the cam roll when" the nail loader 162 is in nail receiv- 120 a; messes before it engages the pin 470 whereby the of any mechanism when it or some coiipshaft 98 is positively stopped and is locked crating mechanism is not in the proper poagainst movement in either direction. sition of rest or adjustment. To prevent The bell crank 462 is rocked in the dithe actuation of the clutch through which 5 'rection' to lift its wedge-shaped end 460 theloosepulley 452 is clutched to the shaft out of the notch 464 in the plunger 466 by 98, in the event that the mechanism which Y means connected with the treadle 454 comeffects the adjustment from one size range prisin a lifting bar 474 pivoted upon the to another has not been somanipulated that end 0 anarm 476 attached to a rock-shaft the parts controlled by it are in their proper m 478 having bearings in the machine frame, positions of adjustment, means is provided a second arm 480 upon said-rock-shaft befor preventing the depression of the trcadle.

- ing connected by a rod 482 to the treadle This means comprises a notched lever 504 454. The lifting bar 474 is provided with turning about a vertical fulcrum 506 and a shelf 484 upon which rests the enlarged shaped to extend along the path of moveend 486 of the lower arm of the bell crank ment of the lever 110. The lever 110 is so 462, the end 486 being also shaped to enprovided with 9. depending pin 508 arranged gage the side of the lifting bar 474 and to enter one of the notches 510 in the lekeep it from being drawn toward the front ver 504 when the lever 110 is in one of its of the machine bythe spring 488 by which proper positions of adjustment. When the 20 it is yieldingly maintained in operative repin 508 is in one of the notches in the lever lation to the bell crank 462. As the treadle 504 a spring 512 holds the arc-shaped arm 454 is depressed the lifting bar 474 is of the lever 504 in close contact with the raised through its connection with the arc-shaped plate 135. When, however, the treadle, thereby rocking the bell crank about lever 110 is between two of its positions of 25 its pivot in the direction to lift its wedgeadjustment, the pin 508 will hold the arcshaped end 460 out of the notch 464 in the shaped end of the lever 504 awa from the spring-pressed plunger 466. To stop the plate 135 and the curved end of the other shaft 98 after one rotation, the disk 456 arm 514 of the lever 504 will rest beneath is provided with a pin 490 which engages .a knob 516 upon a rod 518 connected to the 30 the curved upper side 492 of the lifting bar arm 480 to which the treadle rod 482 is 474 after the shaft 98 and the pulley 452 also connected. The arm 514 thus prevents have begun'to rotate together, and pushes the depression of the treadle .454 when the the lifting bar toward the back side of the awls, drivers and nail block are not in their machine out from Beneath the end 486 of proper positions of adjustment.

35 the bell crank arm, thereby permitting the To prevent the starting of the machine 100 bell crank arm to be drawn down by its when the nail loader 162 is in its nail despring494, thus a ain bringing the wedgelive'ring osition or in a osition between shaped end 460 o the bell crank into 0 the nai delivering and nail receiving posierative position in the groove 458 of t e tions, means is provided for preventing the depression of the treadle until the nail I The shaft 44 is provided with a loose loader has been moved into nail receiving "pulley 452. which is arranged to be clutched position. This means comfprises a bar 520 to the shaft by clutch mechanism substanpivoted upon the machine rame at 522 and tially like that employed to clutch the pulconnected by a link 524' to the arm 480 in 45 ley 452 to the shaft 98, this clutch mechasuch manner that when the bar 520 is in nism com rising a bell crank 462, a springits upright position the pivots of the link I ressedpunger 466 and a lifting bar 474'. 524 and the pivot of the bar 520 will all helifting bar 474' is pivoted upon one be in a straight line. At this time the end of a lever 496 fulcrumed at 498 in the treadle 454 cannot be depressed. The bar ,enda cam roll 500 arranged to be engaged right position by a spring 526 connected at The tappet'cam 502 is so located upon the and at its other end to the machine frame. cam disk 92 that it serves to depress the end To, permit the treadle to be depressed 500,;near the end of the single rotation of in positioxnthe bar 520 is connected by a the shaft 98, thereby raising the lifting rod 530 to a lever 532 pivoted upon the maplate 4741 and rocking the bell crank 462 chine frame and having an arm extending inthe direction to lift its wedge-shaped end into the path of movement of the boss 534 out; of the notch 1 in the spring-pressed surrounding the sprin -pressed plunger 246. pliinger466 to cause the pulley 452 to be As the nail loader 162 is moved into nail reef -clutched, to the shaft 44. ceiving position, the boss 534 strikes the arm 3 ;"Variousmeans'are provided for insuring of the lever 532 and-moves the bar 520 tothe i"'prope r cotiperation of the diiferent ward the left in Fig. 10, thereby permitting es'jinec anisms and to prevent the operation the treadle 454 to be depressed. 13o

' the nail loader -moving to the shaft During the single rotation of the shaft 98 the nail loader 162 will be moved into nail delivering position by its connection with the slide 240 and will be returned into nail receiving position by its connections with the constantly rotating shaft 188. To prevent the actuation of the shaft 44 before is returned into nail receiv position, mechanism is provided for the lifting bar 474 out of operative relation to the bell crank 462' so that when the lever 496 is rocked by the tappet cam 502 the pulley 452 will not be clutched to the shaft 44. This mechanism comprises a rock-shaft 536 journaled in hearings in the back part of the machine frame and having at one end an arm 538 connected by a slotted link 540 to a pin 542 upon the lifting bar 474 and having at its other end an arm 544 connected by a slotted link 546 to a pin 548 upon the lower arm of the bell crank 462. Between the arms 538 and 544 is a third arm 550 slotted at its upper end and having adjustably connected with said end a rod 552 pivotally connected at its other end to one arm of a tripping lever 554 arranged to be engaged by a tripping extension 556 upon the nail loader 162 as the nail loader comes into nail receiving position. The other arm ing of the tripping lever 554 is hook-shaped and is engaged by the hooked end of the exten sion 556 to move the tripping lever into normal, vertical position as the nail loader 162 moves from nail receiving into nail delivering position.

When the parts are in the position shown in Fig. 12, that is when the nail loader is in nail receiving position, the lever 554 is turned down into substantially a horizontal position, thereby moving the arm 550 toward the rear and rocking the rock-shaft 536 to cause the arm 538 through its connection with the pin 542 to move the lifting bar 474' out of operative position beneath the lower arm of the bell crank 462', thus preventing the clutching of the pulley 452' 44 when the nail loader is in this position. The slot in the link 546 is at this time in such position that when the treadle 454 is depressed to raise the lifting bar 474 and through said bar to move the wedge 460 out of engagement withthe plunger 466, the pin 548 upon the lower arm of the bell crank will move in said slot without rocking the shaft 536. After the has been clutched to, the shaft 98 and the nail loader 162 has been moved into operative position, the link 546 will be lowered as the rock-shaft 536 is rocked by its connec tions with the tripping lever 554 and by the spring which acts upon the lifting bar 474' and the slot in the link 546 will be brought into such position that if the wedge 460 fails to trip the clutch at the end of one rotation but instead rides upon the plunger 'means and reciprocating pulley 459.

crank 462to prevent the clutch which controls the shaft 44 from being actuated by the tappet cam 502 and the connections hereinabove described. This prevents the shafts 98 and 44 from being 0 erated at the same time and thus causing the mechanisms controlled by the two shafts each other.

In some of the following claims block 100 is defined a plurality of sets of nail receiving openings or as provided with a set of nail receiving openings for each gang of drivers. It will be understood, of course, that with respect to a feature of the invention like this, which admits of so many obvious modifications and for which there are so many obvious rhechanical equivalents, it is intended that the language used in the claims shall be given the broadest construction consistent with the state of the art.

The improved fastening assembling and delivering mechanism herein shown and described is not herein claimed but is made the subject-matter of a divisional application Serial No. 8702 filed Feb. 17, 1915..

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 2- 1. A machine of the class described, having, in combination, an awl and a driver arranged to operate in succession at the same to interfere with as a part provided with nail location, reciprocating awl operating driver operating means guided within the awl operating means.

2. A machine of the class described, having, in combination, reciprocating awl operating means, reciprocating driver operating means guided within the awl operating means, a nail block having a nail receiving opening, an awl, and a driver, and means for bringing said awl into and out of operative relation to its operating means in such manner that the awl and the driver may be moved in succession into the nail receiving opening in the nail block.

3. A nailing machine, having, in combination, reciprocating awl operating means and reciprocating driver operating means, one of said means being guided within the other, a nail block having a nail receiving opening, an awl and a driver, one of said parts being normally in operative relation to its operating means and the other being will be raised by the engage-J the shaft .336 in the 1 lifting bar 474' to be,

the nail movable into and out of operative relation to its operating means whereby they'may be moved in succession into the nail receivj in combi- I 

